Oscillator, electronic apparatus, and vehicle

An oscillator comprising:

• a container having a base, a lid and a space within and defined by the base and the lid;
• an oscillation element housed in the container;
• a heating circuit housed in the container, and adapted to control a temperature of the oscillation element;
• a temperature detection circuit housed in the container;
• a temperature control circuit housed in the container, and adapted to control the heating circuit based on an output of the temperature detection circuit;
• at least one connecting wire housed in the container, and electrically connects a ground of the temperature detection circuit and a ground of the temperature control circuit to each other;
• a ground external terminal disposed on an outer surface of the container, and electrically connected to the ground of the temperature detection circuit and the ground of the temperature control circuit;
• and
• an internal interconnection embedded in the base of the container,
• wherein,
• the ground external terminal and the grounds of the temperature detection circuit and the temperature control circuit are electrically connected via the internal interconnection, and
• the ground of the temperature detection circuit and the ground of the temperature control circuit are electrically connected not via the internal interconnection.